Ventilator for windows.



No. 660,5"). y Patented out. 23,1900.

s. HEPTINSTALL.

VENTILATUR FOB WINDOWS.

1 UNTTED STATES PATENT OFFICE.

SIDNEY HEPTINSTALL, OF MARION, VIRGINIA.

VENTILATOR FOR -WINDOWS.

SPECIFICATION forming part of Letters Patent No. 660,510. dated October23. 1900 Application filed July 15, 1899.

To all whom it may concern.-

Be it known that I, SIDNEY HEPTINSTALL,

a citizen of the United States, residing at Marion, in the county ofSmyth and State of Virginia, have invented a new and useful Veneral, andmore particularly to that class which are adapted to be placed within awindow and to have the window'sash closed down thereupon, the object ofthe invention being to provide a construction which may be easily fittedto a window of any size within certain prescribed limits and one whichwhen thus fitted will be effective in its operation.

In the drawings forming a portion of this specification, and in whichsimilar numerals of reference designate corresponding parts in theseveral views, Figure 1 is an elevation of the lower portion of theinner side of a window-frame, showing the employment of the ventilatorin connection therewith, the sash being closed down upon the ventilator.Fig. 2 is a transverse vertical section of the ventilator, the positionsof the sash and sill being indicated in dotted lines. Fig. 3 is a rearperspective of the ventilator detached.

Referring now to the drawings, the ventilator consists, essentially, oftwo similar elements 5 and 6, each of which consists of an end piece 7,of quadrant shape, upon the curvilinear edge of which is fixed asimilarlycurved plate 8, of metal, from one edge of which there isprojected a vertical flange 9, the outer face of which lies in the samevertical plane with the flat vertical face 10 of the quadrant end piece.

The flange 9 of the element 5 has its edge turned over to form a closebead 11, which beaded edge is adapted to slide within the ihclosure ofthe tnrnedover edge 12, which forms, in effect, a slideway, as shown.The plate of the element 6 has the curvature of an arc whose radius issomewhat greater than the radius of the arc of the curvature of theelement 5,whereby the two elements may have a telescopic action, theelement 5 sliding into the inclosure of the element 6. A

Secured to the inner end of the element 5 is a third quadrant-shapedblock or plate 13,

Serial No. 723.952. (No model.)

having a recess in the lower portion of its front edge to which is fixedthe end of a beam 14, which end is halved for a purpose which will bepresently explained, the opposite end of the beam being fixed to thequadrant at the opposite end of the section 5. A second beam 15 is fixedat the lower front edge of the quadrant at the outer end of the section6 and lies in the plane of the beam 14. The inner end of the beam 15 ishalved and has its narrowed extremity passed into the recess in thesegment 13, this narrowed extremity receiving the similar innerextremity of the beam 14, and thus permitting the inward telescoping ofthe sections 5 and 6, either or both of the diminished ends of the beamssliding transversely of the quadrant 13 until the proper adjustment issecured, after which they are fixed to the quadrant 13 by means ofnails, screws, orin any other desired manner.

Within each of the sections 5 and 6 is pivoted a slat 17, which slatsare provided with trunnions 18, which enter perforations adjacent theupper ends of the front edges of the quadrants. Thus may the slats orshutters be swung inwardly of the sections 5 and 6 or may be movedoutwardly to lie closely upon the sills 14 and 15, respectively, toclose the ventilator. In order to hold the slats at different points oftheir pivotal movement, spring-pressed bolts 19 are fixed to the slatsand are adapted to enter locking-perforations 25 in the quadrant 13. Theslats are made, preferably, of wood, and thus may be readily cut down tothe proper length, after which the sections may be drawn outwardly andthen moved inwardly to engage the trunnions with their respectiveperforations.

As shown in Figs. 1 and 2 of the drawings, in the application of theventilator the sections are adjusted to the proper positions mutually,after which the ventilator is disposed between the sides of thewindow-frame and with the beams 14 and 15 in the recessed portion of thesill, which normally receives the window-sash when the latter is shutdown. The window-sash is then moved downwardly to lie upon the uppersurfaces of the sections 5 and 6 and in engagement with the rear facesof the flanges 9. In order to hold the ventilator more securely in thisposition,

hooks are pivoted to the outermost quadrants and are adapted to engageeyes 21 upon the inner faces of the window-frame.

To prevent the ingress of insects, 850. each section 5 and 6 hasstretched over its lower open side a screen 22, which latter areadjustable with their respective sections.

Thus it will be seen that with the ventilator described an eifectiveventilation of a room may be secured and that the ventilation thereofmay be regulated as desired. Furthermore, it will be noted that theventilator may be easily fitted to a window of any width within certainlimits and also that by means of the hooks 20 and eyes 21 the ventilatormay be held in position when the windowsash is raised therefrom.

It will be readily understood that in practice the specific shape of theventilator may be changed and that the various parts thereof may bealtered both in form and material without departing from the spirit ofthe invention.

Having thus described the invention, what is claimed is 1. A ventilatorcomprising two telescopic sections, forming an open-bottomed hood, eachof the sections including a segmental end piece having a metallic platefixed to the curved edge thereof, said plate being arcshaped incross-section, the plates being bent upwardly in the planes of the frontedges of their respective end pieces and having the edges of theirupwardly-bent portions bent upon themselves, one of said bent edgesforming a guideway, which slidably receives the other bent edge, asecond segmental end piece fixed to the innermost plate, closures hingedto the end pieces adjacent the upwardly-extending portions of the platesand adapted to swing into the inclosures of the plates and end pieces,whereby said ventilator may be placed upon a window-sill and receive thelower edge of a sash against the plates with the upwardly-extendingportions thereof lying against the inner face of the sash to hold theventilator in position.

2. A ventilator comprising two telescopic sections including segmentalend pieces hav ing arcshaped plates attached thereto, and forming anopen-bottomed hood, one section having an additional end piece dividingthe space inclosed into the two compartments and the plates being bentupwardly at their front edges and having the upper edges of saidupwardly-bent portions bent upon themselves to form intermeshing slides,said upwardly-extending portions being adapted to lie against the innerface of a window-sash to prevent outward displacement of the ventilator,a closure for each of the compartments hinged to the corresponding endpieces adjacent the upwardly-extending portion of its respective plateand adapted to swing into the inclosures of the telescopic sections, andmeans for holding these closures at various points of their swingingmovements.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

SIDNEY HEPTINSTALL.

Witnesses:

JNo. R. SEXTON, H. N. BELL.

